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22152074 = 277920029
BaseRepresentation
bin101010010000…
…0001110001010
31112200102221012
41110200032022
521132331244
62110443522
7356201210
oct124401612
945612835
1022152074
11115601aa
1275035a2
134787b49
142d28cb0
151e2889e
hex152038a

22152074 has 16 divisors (see below), whose sum is σ = 38457600. Its totient is φ = 9373104.

The previous prime is 22152061. The next prime is 22152101. The reversal of 22152074 is 47025122.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8909 + ... + 11120.

It is an arithmetic number, because the mean of its divisors is an integer number (2403600).

Almost surely, 222152074 is an apocalyptic number.

22152074 is a deficient number, since it is larger than the sum of its proper divisors (16305526).

22152074 is a wasteful number, since it uses less digits than its factorization.

22152074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20117.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 22152074 is about 4706.5989844048. The cubic root of 22152074 is about 280.8480834345.

Adding to 22152074 its reverse (47025122), we get a palindrome (69177196).

The spelling of 22152074 in words is "twenty-two million, one hundred fifty-two thousand, seventy-four".

Divisors: 1 2 7 14 79 158 553 1106 20029 40058 140203 280406 1582291 3164582 11076037 22152074